Door-holding spring.



G. W. JOHNSON.

DOOR HOLDING SPRING.

APPLICATLON FILED JUNE 19, 1913.

Patented Oct. 6, 1914.

GEORGE W. JOHNSON, OF PIG-EON CGVE, MASSACHUSETTS.

DOOR-HOLDING SPRING.

Application filed June 19, 1813.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Serial no. 774,680.

To all whom it may concern:

Be it known that I, Gnonon W. JonNsoN, citizen of the United States, residing at Pigeon Cove, in the couny of Essex and State of Massachusetts, have invented cer tain new and useful Improvements in Door- Holding Springs, of which the following is a specification.

This invention relates to attachments to doors and similar swinging closures, and comprising a spring actuated stop which bears normally against the floor and holds the door from movement, and is releasable by the operation of the knob, and has for one of its objects to simplify and improve the construction and increase the etliciency and utility of devices of this character.

Another object of the invention is to provide a simply constructed device which may be applied to a door and its knob without structural change therein, and without disfiguring the door.

lVith these and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims, and in the drawings illustrative of the preferred embodiment of the invention, Figure 1 is a side elevation of a portion. of a door including the knob with the improved device applied. Fig. 2 is an edge view of the same. Fig. 3 is a detached perspective view of the controlling spring. Fig. d is a perspective view of a modified form of the spring.

Corresponding and like parts are referred to in the follow ng description and indicated in all the views of the drawin s by the same reference characters.

The improved device may be applied without material structural change to doors of various sizes and to knobs of various forms, and for the purpose of illustration a portion of a door is represented at 10 and the knob at 11 including its shank 12.

The improved device comprises a spring member represented as a whole at 13 and attached to the bottom edge of the door and preferably in a channel 21. The spring may be formed of wire as represented in Figs. 1 and 3 or of a flat plate as represented in Fig. 1-. The spring is formed with a bend intermediate its ends and with an eye at the outer end. By this arrangement the body of the spring bears entirely beneath the bottom edge of the door and is concealed from view. The downwardly bent portion of the resilient member only bears upon the floor while the terminal eye is held above the floor so that the knot of the flexible member is held from contact with the floor. Nhen the spring is formed of. wire as shown in Figs. 1 and 3 it is provided with a screw receiving loop 15 at one end and secured in place by a staple or other similar device 16 spaced from the screw receivim loop. When the fiat form of, spring is employed the latter will'be'provided with screw receiving apertures 17 whereby the spring is secured to the door.

Rigidly attached to the shank 12 of the knob 11 is a bar 18 which is directed normally downwardly as shown in Fig. 1. Connected to the bar 18 is a pull cord or like device 19 which leads through an eye 20 upon the door and extends through a channel 22 in the vertical edge of the door and is secured in the eye 14 of the spring. By this means all of the flexible member except the short portion between the bar 18 and the eye of the guide aperture 22 is concealed and protected and prevented from injury by contact with surrounding objects. By this simple arrangement when the knob is released the bar 18 will remain downwardly with the flexible member 19 loose or slacked up which permits the spring 13 to bear downwardly against the floor represented at 23, and thus operates to hold the door in whatever position it may be left. When the door is closed and the bar 18 in released position the spring bears upon the floor, and when the knob is turned to release the latch portion of the lock the bar 18 will be moved with the knob and apply strain to the flexible memher and draw the spring 13 upwardly to disengage it from the floor, leaving the door free to be moved to any required extent, and when the knob is released the spring will automatically engage the floor and hold the door from movement.

The spring will be of sufficient strength to hold the door against movement by any ordinary strain, such as the wind, but will be readily released when the knob is grasped to close the door.

The spring may be of any required material, but will preferably be of steel, and also effectually prevents the slamming of the door from any cause.

Having thus described the invention, what is claimed as new is:

1. A device of the Class described comprising a resilient member adapted to be attached at one end beneath a door and having the intermediate portion depressed for engagement with the floor leaving the free end constantly spaced from the floor, a pull member connected to the elevated portion of the resilient member and prevented thereby from contacting with the floor, and. means operatively associated with said pull member and controllable by the turning of a door knob for elevating said resilient member to release the depending portion thereof from contact with the floor.

2. The combination with a door including a knob and its shank and having a recess in its lower edge and a channel in its vertical edge connrmnicating with the recess, said Copies of this patent may be obtained for five cents each, by addressing the Commissioner door having a lateral guide aperture in the face thereof between the knob shank and the adjacent edge of the door and communicating with the channel, of a resilient member attached at one end to the door within the bottom recess, an arm attached. to the shank .of the knob, and a flexible pull member con- GEORGE W. JOHNSON. [L.S.] lVitnesses V ARTHUR L. NnLsois, Arenas C. STEIN.

of Eatents.

Washington, D. C. 

